I would like to know this too because I have done a significant amount of mapping on Cellmapper on my Nexus 5 (new member from HoFo and T4GRU). SignalCheck Pro displays the band perfectly. If the guys over at Cellmapper had a way to distinguish B26 from B25 and B41, maybe we could see just how far B41 goes (lots of B41 holes in Lansing MI).